我旁边有一个文本框和一个日期选择器,我使用的是asp.net,用户可以输入日期,也可以从datepicker中选择日期.
如何验证日期输入是否正确？
<script type="text/javascript">
$(document).ready(function () {
$('#<%=StartDate.ClientID%>').datepicker({ showOn: 'button',buttonImage: '../images/Calendar.png',buttonImageOnly: true,onSelect: function () { },onClose: function () { $(this).focus(); }
});
});
</script>
解决方法
如果您使用的是ASP.NET,则可以使用ASP.NET比较验证器[
ASP.NET Date Validator].
<asp:TextBox ID="tb" runat="server"></asp:TextBox> <asp:CompareValidator ID="cv" runat="server" ControlToValidate="tb" ErrorMessage="* Please enter a valid date!" Text="*" Operator="DataTypeCheck" Type="Date"></asp:CompareValidator>
****更新**
我使用了上面的Compare Validator执行的javascript并在其周围包装了一个自定义的jQuery Validation方法：
<script type="text/javascript">
$(document).ready(function () {
$.validator.addMethod("truedate",function (value,element,params) {
function GetFullYear(year,params) {
var twoDigitCutoffYear = params.cutoffyear % 100;
var cutoffYearCentury = params.cutoffyear - twoDigitCutoffYear;
return ((year > twoDigitCutoffYear) ? (cutoffYearCentury - 100 + year) : (cutoffYearCentury + year));
}
var yearFirstExp = new RegExp("^\\s*((\\d{4})|(\\d{2}))([-/]|\\. ?)(\\d{1,2})\\4(\\d{1,2})\\.?\\s*$");
try {
m = value.match(yearFirstExp);
var day,month,year;
if (m != null && (m[2].length == 4 || params.dateorder == "ymd")) {
day = m[6];
month = m[5];
year = (m[2].length == 4) ? m[2] : GetFullYear(parseInt(m[3],10));
}
else {
if (params.dateorder == "ymd") {
return null;
}
var yearLastExp = new RegExp("^\\s*(\\d{1,2})([-/]|\\. ?)(\\d{1,2})(?:\\s|\\2)((\\d{4})|(\\d{2}))(?:\\s\u0433\\.)?\\s*$");
m = value.match(yearLastExp);
if (m == null) {
return null;
}
if (params.dateorder == "mdy") {
day = m[3];
month = m[1];
}
else {
day = m[1];
month = m[3];
}
year = (m[5].length == 4) ? m[5] : GetFullYear(parseInt(m[6],10));
}
month -= 1;
var date = new Date(year,day);
if (year < 100) {
date.setFullYear(year);
}
return (typeof (date) == "object" && year == date.getFullYear() && month == date.getMonth() && day == date.getDate()) ? date.valueOf() : null;
}
catch (err) {
return null;
}
},"Please enter an actual date.");
$("#form1").validate();
$("#one").rules('add',{
truedate: {
cutoffyear: '2029',dateorder: 'mdy'
}
});
});
</script>
<input id="one" />
